Calderwood (12-3) is coming off a first-round submission win over Kalindra Faria in August. The win improved her record to 2-0 as a UFC flyweight.

Lipski (10-3), also known as the "Violence Queen," was scheduled to make her UFC debut later this month, however, her fight against Maryna Moroz was canceled after Moroz withdrew and the promotion couldn't find a suitable replacement. The Polish fighter is considered one of the best female 125-pound fighters in the world.

The UFC has yet to finalize a main event for the card, which will take place at the Honda Center.